* {
  padding: 0px;
  margin: 0px;
  justify-content: center;
  align-items: center;
}



.content-center {
  display: flex;
}


a {
  text-decoration: none;
}

ul {
  display: flex;
  padding: 0px;
  margin: 0px;
  list-style: none;
}

ul li {
  margin: 10px;
  height: 70px;
  width: 70px;
  display: flex;
  border-radius: 50%;
  cursor: pointer;
}

ul li i {
  transition: all 0.3s linear;
}

ul li:hover i {
  color: #fff;
  font-size: 17px;
}

ul li:hover::after {
  opacity: 1;
  transform: scale(0.8);
}

ul li::after {
  content: "";
  position: absolute;
  height: inherit;
  width: inherit;
  border-radius: 50%;
  opacity: 0;
  z-index: -1;
  transition: all 0.3s linear;
}

ul li:nth-child(1) {
  border: 2px solid #007bb6;
  color: #007bb6;
}

ul li:nth-child(1)::after {
  background-color: #007bb6;
  color: #007bb6;
}

ul li:nth-child(2) {
  border: 2px solid #dd4b39;
  color: #dd4b39;
}

ul li:nth-child(2)::after {
  background-color: #dd4b39;
  color: #dd4b39;
}

ul li:nth-child(3) {
  border: 2px solid #9ec5d7;
  color: #9ec5d7;
}

ul li:nth-child(3):after {
  background-color: #9ec5d7;
  color: #9ec5d7;
}

h2 {
  text-align: center;
}
#mail {
  padding: 0 40px;
  margin-bottom: 20px;;
}